| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| history reference center | 1.12 | 0.4 | 1771 | 6 | 24 |
| history | 1.35 | 0.4 | 3610 | 83 | 7 |
| reference | 1.79 | 0.6 | 1936 | 100 | 9 |
| center | 1.04 | 0.6 | 9627 | 12 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| history reference center | 1.47 | 0.8 | 1676 | 100 |
| history reference center database | 0.92 | 0.2 | 7345 | 56 |
| ebsco history reference center | 0.21 | 0.7 | 1087 | 50 |
| nursing reference center database | 0.76 | 0.1 | 9394 | 87 |
| the historical research center name search | 1.33 | 0.8 | 9825 | 30 |
| literary reference center database | 1.56 | 0.2 | 2382 | 49 |
| the historical research center | 0.58 | 0.4 | 9090 | 23 |
| reference usa libraries databases | 1.18 | 0.5 | 9518 | 73 |
| the historical research center family name | 0.73 | 0.6 | 7420 | 1 |
| center for public history | 0.54 | 0.7 | 7676 | 55 |
| the biblical history center | 0.62 | 0.3 | 8239 | 83 |
| center of military history library | 0.98 | 0.2 | 521 | 97 |
| what is reference database | 1.64 | 0.4 | 2899 | 77 |
| modern history center table | 0.09 | 0.4 | 8615 | 42 |
| center for military history | 1.53 | 0.8 | 5061 | 53 |
| historical research center family crest | 1.52 | 1 | 8091 | 73 |
| what is the center of history | 0.6 | 0.1 | 132 | 26 |
| bibliographic databases for history | 0.99 | 1 | 3491 | 15 |
| historical research center store | 0.75 | 0.3 | 8406 | 80 |
| history_database | 1.69 | 0.4 | 4993 | 41 |
